Support oil cylinder of rail welding vehicle

• Main Authors: LI XIONGWEI, TAO XIAOHU, CAI JINYUAN
• Format: Patent
• Language: Chinese; English
• Published: 20.03.2013
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model relates to a support oil cylinder of a rail welding vehicle. The inner diameter of a cylinder barrel is as shown in the specification, and the thickness delta of the wall of the cylinder barrel is 6.6mm; the outer diameter of a piston is as shown in the specification, the axiality tolerance is 0.02mm, the degree of finish of the bottom of a sealing slot is 1.6, the size of a piston rod is phi 90f7, the straightness is not larger than 0.1mm per 1000mm, the circular degree is 0.015mm, and the thickness of a plating layer on the surface of the piston rod is 0.04-0.05mm; and a guide sleeve is of a split structure, is additionally provided with a gland and is internally provided with a sealing system consisting of a dustproof ring P6, a secondary sealing component T20, a main sealing component OMS, an MR and a guiding component, the size of an outer circle of the guide sleeve is phi 140f7, the size of an inner hole is phi 90.4H8, and the concentricity is 0.05mm. The support oil cylinder of the ra